samien
/
three.js
зеркало из https://github.com/mrdoob/three.js.git


			
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							<!doctype html>
<html lang="en">
	<head>
		<title>three.js webgl - performance</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
		<style>
			body {
				background:#fff;
				padding:0;
				margin:0;
				font-weight: bold;
				overflow:hidden;
			}
		</style>
	</head>
	<body>

		<script src="../build/Three.js"></script>

		<script src="js/Stats.js"></script>

		<script>

			var container, stats;

			var camera, scene, renderer;

			var mesh, zmesh, lightMesh, geometry;

			var mouseX = 0, mouseY = 0;

			var windowHalfX = window.innerWidth / 2;
			var windowHalfY = window.innerHeight / 2;

			document.addEventListener( 'mousemove', onDocumentMouseMove, false );

			init();
			animate();


			function init() {

				container = document.createElement( 'div' );
				document.body.appendChild( container );

				camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 20000 );
				camera.position.z = 3200;

				scene = new THREE.Scene();
				scene.add( camera );

				var light = new THREE.PointLight( 0x0011ff, 1, 5000 );
				light.position.set( 4000, 0, 0 );
				scene.add( light );

				var light = new THREE.PointLight( 0xff1100, 1, 5000 );
				light.position.set( -4000, 0, 0 );
				scene.add( light );

				var material = new THREE.MeshPhongMaterial( { specular: 0xffffff, shading: THREE.SmoothShading, perPixel: true } );

				var geometry = new THREE.SphereGeometry( 1, 32, 16, 0, Math.PI );

				for ( var i = 0; i < 5000; i ++ ) {

					var mesh = new THREE.Mesh( geometry, material );

					mesh.position.x = Math.random() * 10000 - 5000;
					mesh.position.y = Math.random() * 10000 - 5000;
					mesh.position.z = Math.random() * 10000 - 5000;

					mesh.rotation.x = Math.random() * 360 * ( Math.PI / 180 );
					mesh.rotation.y = Math.random() * 360 * ( Math.PI / 180 );
					mesh.scale.x = mesh.scale.y = mesh.scale.z = Math.random() * 50 + 100;

					mesh.matrixAutoUpdate = false;
					mesh.updateMatrix();

					mesh.doubleSided = true;

					scene.add( mesh );

				}

				renderer = new THREE.WebGLRenderer( { clearColor: 0x050505, clearAlpha: 1, antialias: false } );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.sortObjects = false;

				renderer.gammaInput = true;
				renderer.gammaOutput = true;

				container.appendChild( renderer.domElement );

				stats = new Stats();
				stats.domElement.style.position = 'absolute';
				stats.domElement.style.top = '0px';
				stats.domElement.style.zIndex = 100;

				stats.domElement.children[ 0 ].children[ 0 ].style.color = "#eee";
				stats.domElement.children[ 0 ].style.background = "transparent";
				stats.domElement.children[ 0 ].children[ 1 ].style.display = "none";

				container.appendChild( stats.domElement );

			}

			function onDocumentMouseMove(event) {

				mouseX = ( event.clientX - windowHalfX ) * 10;
				mouseY = ( event.clientY - windowHalfY ) * 10;

			}

			//

			function animate() {

				requestAnimationFrame( animate );

				render();
				stats.update();

			}

			function render() {

				camera.position.x += ( mouseX - camera.position.x ) * .05;
				camera.position.y += ( - mouseY - camera.position.y ) * .05;

				camera.lookAt( scene.position );

				renderer.render( scene, camera );

			}

		</script>

	</body>
</html>